Free Missed Call Alerts for Bsnl and Idea

Get Missed Call alert when you are not avail or when your mobile is switched off ,this service is a VAS in most of the operator,except Tata Docomo they offer missed call alert absolutely free for all of its users.
So how to get free missed call alert for Idea and Bsnl.

For Idea dial:
*62*457#

For Bsnl dial :
*62*17010#

This is found to be Worked in some state ,check in your area or circle..